Water pump is an important equipment for extracting water from deep wells. It extracts groundwater to the surface and is widely used in the fields of domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship loading, fountain landscape and hot spring bathing. Submersible pumps on the use of media is divided into water submersible pumps, sewage submersible pumps, submersible seawater pumps (corrosion) three categories. Following the current market is relatively large amount of submersible pumps for type selection analysis.

First, deep submersible pumps

Deep well submersible pump is a water-lifting equipment that directly penetrates the motor and pump into the water and has the advantages of simple structure, high unit efficiency, low noise, safe and reliable operation, convenient installation and maintenance. It is suitable for extraction from deep wells, hot wells and oceans, as well as for extraction of rivers, reservoirs and drains. It is mainly used for irrigation of farmland and human and livestock water in plateau and mountainous areas. It can also be used in cities, factories, railways, mines and construction sites Drainage use.

ATQJ series of deep submersible pump Description:

AT150QJ: the maximum diameter of the unit 143mm, outlet diameter is divided into two 65,68 mm, the center distance 110mm, flow 10-50m3 / h;

AT200QJ: The maximum diameter of the unit is 184mm, the outlet diameter is DN100, the center distance is 150mm and the flow rate is 10-80m3 / h.

AT250QJ: The maximum diameter of the unit 234mm, outlet diameter DN125, center distance 180mm, flow 50-200m3 / h;

AT300QJ: the maximum diameter of the unit 281mm, outlet diameter DN150, center distance 210mm, flow 160-370-50m3 / h;

AT350QJ: The maximum diameter of the unit 330mm, outlet diameter DN200, center distance 256mm, flow 300-450m3 / h;

AT400QJ: the maximum diameter of the unit 360mm, outlet diameter DN250, center distance 325mm, flow 300-650m3 / h;

AT500QJ: The maximum diameter of the unit 430mm, flow 450-550m3 / h;

AT600QJ: The largest diameter of the unit 520mm, flow rate 650-900m3 / h;

AT700QJ: The maximum diameter of the unit 600mm, flow 1000-1250m3 / h;

AT800QJ: The maximum diameter of the unit 600mm, flow 1000-1250m3 / h;

AT900QJ: The maximum diameter of the unit 670mm, flow 1500-2400m3 / h;

Users can choose the right type according to the diameter of the wellbore, water temperature, PH value, water inflow, moving water level

1. Influx of water (unit m3 / h) Well time to pour out the amount of water per unit time.

2. Still water level (unit m) The distance from the wellhead to the surface of the water before pumping.

3. Moving water level (unit m) When the pump is turned on, the water level in the well will decrease with the pumping time. In the water pump is relatively stable, the water down to a certain depth will be stabilized when the water surface to the ground distance.

4. Caliber (mm), points 150,200,250,300,350,400,500,600,700,800,900 variety of specifications.

5. Head (in m) = moving water level to head vertical distance + pipeline loss.

Precautions:

1, Suggest that the well water content exceeds one ten thousandth

Should not be installed using deep well pump. Because well water content is too large, such as more than 0.1%, will accelerate the wear of rubber bearings, causing pump vibration, shorten the pump life.

2, according to the well water level decline and the water pipeline head loss:

Determine the actual needs of the well pump lift, which is the head of the well pump, which is equal to the vertical distance from the water level to the pool surface (net head) plus the loss of head. The head of loss is usually 6 - 9% of the net head, usually 1 - 2m. Pump the lowest impeller into the water depth of 1 - 1.5m is appropriate. The total length of the downhole portion of the pump tube shall not exceed the maximum length of the well into which it is specified in the pump instructions.

3, according to the amount of water well:

Selected well pump flow. Each well has an economically optimal volume of water that should flow at a rate equal to or less than the volume of water produced when the well level drops to half the well depth. When the pumping capacity is greater than the machine water, it will cause the machine shaft wall collapse siltation, affecting the life of the well; if the pumping is too small, the benefits of wells will not be fully realized. So, the best way is to pump wells pumping test, with the wells may provide the largest amount of water for the selected well pump flow basis. Pump flow to the label number or label on the manual shall prevail.

4, according to the caliper, the initial water quality pump type:

Different types of pumps to the diameter of the well have certain requirements, the maximum size of the pump is less than the diameter 25 - 50mm. If the borehole skew, the maximum size of the pump should be smaller. In short, the part of the pump body can not close to the inner wall of the well to prevent the pump from damaging the well due to vibrations of the pump.

Deep submersible pumps for deep well, hot water wells and the extraction of the ocean can also be used for irrigation and plateau mountain water, factories, railways, mines for drainage. In our country, deep well submersible pump after years of development, more and more suitable for people's production and life. To study it further is the need of the times. Only when the relevant work is done more carefully can its future development be smoother.

Second, hot water submersible pumps

Hot water submersible pump is essential equipment for extracting geothermal water. Can also be used, pool, water tank, pressurized use.

Jin Oute licensing QJR series of high-temperature wells submersible pump is my company newly developed for hot water vertical single-stage, multi-stage submersible pump. This series of pumps is a deep well extraction of hot water, the main tool for urban and rural areas, industrial and mining enterprises need hot water.

Equipped with YQSR series of high-temperature well diving three-phase asynchronous motor, is the introduction of the German company Roots diving motor technology and the United States radar submersible motor technology based on the design and manufacture.

It takes full account of the structural effects of vaporization, calcification and sand, from the electromagnetic and sealing materials used on the F-class high temperature and effective to ensure that the motor under high temperature working life. The pump series equipped with pumps, from the material and structure to fully take into account the requirements in the use of hot water.

Hot water submersible pump material mainly: cast iron, tin bronze, stainless steel 304,316:

Tianjin Ott QJR series of hot water submersible pump features:

1, can be extracted within 180 ° hot water temperature;

2, the pump body, the motor through the coupling connection, disassembly, maintenance more convenient and flexible;

3, the motor draws from the German technology Ritz, to ensure the performance of the motor, extending the service life;

4, submerged into underwater operation, will not enter the air, but there is no trouble pumping irrigation;

5, the motor adopts high temperature waterproof line, water lubrication, water cooling, not easy to cause environmental pollution;

6, the overall structure is compact, small size, light weight, low noise, significant energy saving, easy maintenance.

Tianjin Auto brand QJR high temperature hot water submersible pump Scope of application:

1, suitable for repeated use and collection of waste heat boiler water;

2, the winter heating pipeline leak hot water collection and reuse;

3, the factory hot water cooling cycle (submerged into the water work);

4, can be extracted heat pipe leaks in the trench hot water;

5, for heating business equipment maintenance;

6, for bathing center for loading and unloading hot water, extraction of underground hot spring water, etc. more widely used.

Third, stainless steel submersible pumps

Tianjin Oute brand QH (B) stainless steel submersible pump is developed by our company corrosion-resistant energy-saving pump, the pump than other manufacturers stainless steel submersible pumps, high efficiency, energy saving, smooth runner, improve efficiency. Green, very suitable for the Water Conservancy Bureau water supply, mine rescue, power plant cooling, steel cooling, sea water lifting, offshore platform water supply, fire fighting, equipment cooling, desalination, can also be used as groundwater source heat pump in Linhai area heating, marine drainage, Marina Square fountain landscape, mariculture and other purposes.

We have developed a large flow stainless steel submersible pumps, high-lift stainless steel submersible pumps, flow can reach 1200m3 / h, lift up to 800 meters.

Stainless steel submersible pump

Provide corrosion-resistant materials: 304,316,316 L, stainless steel, 904L, duplex steel, bronze, etc., but also according to customer special requirements, custom production!

Tianjin Ott stainless steel motor parameters

★ Motor protection grade: IPX8, insulation class F;

★ The introduction of technology in Germany, with a simple structure, reliable operation, long life, easy maintenance, high strength indicators

★ YQSH series wells with diving three asynchronous motor wet filling structure for water

★ 304 stainless steel (special material 316,316 L, 3861 tin bronze to be customized)

★ corrosion-resistant, hardness

★ motor running stable performance and minimal noise

Jin Oute brand corrosion-resistant submersible pump parameters

Flow range of 10 ~ 1200m3 / h

Head range 10-800m

Medium temperature 4 ℃ ambient temperature

Working pressure ≤ 6mpa

Motor data power range 3-1300KW

Voltage range 380V (660V, 3000V, 6000V) ± 5%

Frequency range 50HZ or 60HZ ± 1%

Ambient temperature ≤ 125 ℃

Motor series 2 pole or 4 pole or 6 pole

Material Application Pump shell material 304/316 / 316L / 3816 tin bronze / 904L and so on

Impeller, material 304/316 / 316L / 3816 tin bronze / 904L and so on

Bush material rubber / PTFE / copper alloy / carbide and so on

Pump shaft material 45 # steel / 2Cr13 / 3Cr13 / Monel / two-way steel

Seal the form of oil seals, mechanical seals, special forms of sealing

Fourth, diving axial pump

Axial flow pump impeller blades by the liquid on the force generated by the liquid along the axial direction of the pump, there are vertical, horizontal, inclined and tubular flow several.

It is mainly the use of impeller rotation caused by high thrust lift. Axial flow Pump blades lift the water generated by the lift, the water can be pushed from below to above. Axial flow pump blades are generally submerged in a pool of sucked water. As the impeller rotates at high speed, under the action of the lifting force generated by the blades, the water is continuously pushed upward to make the water flow out of the outlet pipe. The constant rotation of the impeller, the water will be continuously pressured to the height.

Submersible axial flow pump

Tianjin Aote pump submersible pump nominal outlet diameter from 350,500,600,700,800,900,1000,1200,1400,1600 a total of ten caliber, flow range 0.12-12m3 / s, head range 2-14m; power Range 7.5-630kW; voltage levels 380V, 660V, 3kV, 6kV, 10kV.

QZB submersible axial flow pump and QH (B) submersible mixed flow pump is mainly suitable for the following occasions:

â‘  farmland irrigation and drainage;

â‘¡ municipal discharge of rain and mild sewage;

â‘¢ industrial process water, cooling water;

â‘£ water diversion project.

Used in urban water supply, water diversion project, urban sewage drainage system, sewage treatment works, thermal power station circulating water, dock water supply and drainage, water conservancy projects, drainage irrigation, aquaculture and so on.

Structure Description

QZB submersible axial flow pump, pump section by the inlet bell, impeller components, impeller shell and guide vane body composed of four parts. Submersible motor is a hermetically sealed dry asynchronous motor, the motor housing is closed, the static sealing device is arranged at the outlet of the motor at the upper end of the motor, the rotating seal device is arranged at the output shaft of the lower end cover of the motor, and the diving motor is provided with all the safe and reliable performance of the diving operation. Leakage on the seal, coil and bearing temperature monitoring, alarm and protection devices, does not affect the normal operation of the motor early leakage (alarm only). When the coil temperature exceeds 135 ℃, bearing temperature exceeds 90 ℃, the use of power protection, all protectors by a submersible pump dedicated protector to monitor, to ensure the safe use of submersible pumps.

The basic method of maintenance and repair:

(1) Check the sewage pump pipe and joints with loose phenomenon. Turn the sewage pump by hand and see if the sewage pump is flexible.

(2) Add bearing lubricating oil to the bearing body, observe the oil level should be at the center line of the oil standard, lubricating oil should be replaced or replenished promptly.

(3) Unscrew the diversion plug of the sewage pump body, and pour the water (or slurry).

(4) close the outlet valve and outlet pressure gauges and import vacuum gauge.

(5) Move the motor to see if the motor is steered correctly.

(6) start the motor, when the sewage pump is running, open the outlet pressure gauge and inlet vacuum pump as it shows the appropriate pressure, and gradually open the valve, while checking the motor load.

Precautions for use

1, test run, should check the link parts, to ensure that the connection parts without loosening.

2, electrical appliances, meters work properly; oil, gas, water piping system shall not have leakage; pressure, hydraulic normal.

3, often check whether there are floating near the inlet to prevent the inlet blockage.

4, axial flow pump bearing temperature should not exceed 75 degrees.

5, At any time pay attention to the sound and vibration of the pump and found abnormal stop immediately check.

6, the oil temperature inside the gear box should be normal

Five, submersible spiral centrifugal sewage pump

Submersible spiral centrifugal sewage pump can be long fibers in the sewage, bags, belts, grass, cloth and other substances torn, cut off, and then successfully discharged, especially suitable for conveying liquids containing hard solids, fibrous materials and particularly dirty, sticky, slippery Liquid. AS, AV submersible sewage pump.

Unique Spiral Centrifugal Impeller: The Hyster Patented Spiral Centrifugal Impeller combines the advantages of a normal and a spiral pump. The impeller consists of two functional parts: the spiral part has a positive role in the provision of good self-priming capacity and lower net suction head requirements. Centrifugal part of the impeller energy in the volute can be converted into the outward pressure energy.

Spiral centrifugal impeller pump features:

1, the real non-blocking performance: spiral centrifugal pump with extraordinary non-blocking performance. Pump open large passage with high efficiency, non-blocking characteristics, the delivery of large volumes of solid and long fiber material easier. Ordinary so-called non-clogging centrifugal pumps, often in the long fibers and solids into the channel by the edge of the leaves caught in or stuck between the import and export, blockage, resulting in mechanical failure. These problems do not exist with a Hyster pump equipped with a helical centrifugal impeller. The helical impeller rotates itself into the soft solid so that the filler can not be blocked at the inlet, and the reverse inner groove wall and the back of the impeller are also designed with reverse thread grooves to prevent fiber accumulation.

2, soft conveying medium: Another advantage of spiral design is: "soft delivery", that is, with the flow of solid matter, does not hit any part of the pump. This advantage applies to the following areas: the transport of active loose material, can maintain its original physical state, loose material will not be torn, broken. Emulsion in the oil, can maintain its specific characteristics of the state. Floating fibers, will not be twisted or wound. Fragile (fragile) items such as tomatoes, live fish, etc., will not be damaged.

3, outstanding operating curve: high efficiency = low operating costs Steep performance curve = smooth operation Low net suction head = high self-suction capability Smooth power curve = no overload area High speed = compact structure.

4, high solid content media handling capacity.

5, the use of adjustable wear-resistant lining: Hyster optional pump wear lining, in the case of severe wear and tear is an ideal choice, when the wear occurs, just replace the liner can be, without Replace the entire shell, convenient and economical.

6, using brand-name heavy-duty bearings and high-quality mechanical seal: Hyster uses international brand heavy-duty bearings and high-quality special mechanical seals, and other world's best components. As a result, Hyster Pumps will continue to operate at the lowest maintenance cost.

Application areas:

1, municipal drainage (pumping station can save the grille) and the sewage treatment plant of all aspects of the process

2, chemical industry: liquid containing crystals, oily wastewater (no opacity), without changing the nature of the medium such as pumping

3, food industry and fisheries: transport of fruits, vegetables, live fish, poultry slaughter after the viscera

4, paper industry: conveying long fiber pulp or pulp reuse

5, transportation of slag, excavation of tunnel construction mud, water and other construction sites

6, steel plants: the transport of iron, iron and other solid waste water

7, Suction dredging for dredging of the river

Six, mining submersible pump

Mine submersible pumps in the production of drainage mine, flooding emergency rescue drainage, drainage and other areas of mine recovery has been widely used, drainage and rescue for the mine made a very good protection. The company produces submersible pump flow of 80-2000 cubic meters, lift 100-1700 meters; motor power reached 4200 KW.

On the basis of the introduction of our company, the technical upgrading and effective improvement of the actual conditions in the domestic mines make the submersible pump fully meet the requirements of vertical, horizontal and inclined operation; conveying high concentration or highly corrosive mine water; Features and allows a short dry time; for emergency drainage submersible pump full head start and run and other salient features. Both to ensure the introduction of energy-efficient technology and fully adapt to the actual mine conditions of the mine.

Applicable market scope

â‘  by the main type of mine: coal mines, iron ore, non-ferrous metals, non-metallic minerals and other mines

â‘¡ According to the type of mining and mining: Well mining, surface mining, chemical brine well mining

â‘¢ by drainage type: normal production of drainage, emergency rescue drainage, mining and recovery of drainage.

â‘£ other major markets Municipal high jet, water and water and other similar market.

Water quality requirements PH4-10 (using special materials to meet more complex requirements) Environmental water temperature ≤ 50 ℃ (special environment matching high temperature motor, water temperature 95 ℃) Particle size According to the pump structure and the impeller exit width of different, maximum ≤ 20mm.

Pump structural features

Mining submersible pump impeller symmetrical distribution, the resulting two axial thrust in the opposite direction, exactly balanced with each other. In this way, the lower part of the motor water-lubricated thrust bearing only need to withstand the rotor and pump parts of the heavy acid rotation, without having to withstand the axial water pump thrust generated during operation, thrust bearing axial load greatly reduced Small, better bearing operating conditions, reduced wear and tear, longer life expectancy, the overall reliability of pump operation has also been improved, extending service life.

Mining submersible pump technology advanced:

● Pump symmetrical arrangement, can basically eliminate the axial force, the residual axial force by a pair of back-to-back angular contact ball bearings.

● The pump efficiency is increased by 5-14% over the multistage pump of the same type due to unbalanced device, that is, disc friction loss without balance disc and no balance return loss.

● As a result of unbalanced device, completely solve the balance device failure caused by the balance of the balancer and balance plate seat wear or rotor and other seized death, greatly extending the life of the pump.

● safe pump seal design. Depending on the pressure and structure, the pump body uses a metal-faced, hard-faced, metal-wound gasket or O-ring seal.

● unique structural strength design. Allows the pump single-stage lift of 1.0Mpa (100m), the outlet pressure up to 17Mpa (total head 1700m), and the core components of bearings and rotors from temperature changes, with excellent thermal shock resistance.

QKSG / D mining submersible pump parameters

Double-suction self-balancing structure; high-lift, large flow, stubby, no axial force.

Performance data flow range 80 ~ 2400m3 / h

Head range 100-1700m

Medium temperature

PH4-10 water quality requirements (special materials to meet higher)

Solid content ≤ 8%; particle size ≤ 20mm.

Motor data power range 140-4200KW

Voltage range 660V, 3KV, 6KV, 10KV ± 5%

Frequency range 50HZ or 60HZ ± 1%

Ambient temperature ≤ 125 ℃

Motor series 2 pole or 4 pole

Material Application High grade cast iron, cast steel, stainless steel, duplex steel

Impeller, guide vane cast steel, copper alloy, stainless steel, dual phase steel

Shaft, sleeve high chrome steel, copper alloy, dual phase steel

Bearing materials imported wear and lubrication of excellent performance materials

Sealed form of mechanical seal

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